Gem

Gems are programs and libraries for the Ruby programming language. They are distributed by Ruby's package manager, which is called RubyGems, which is accessed by the gem command.

This page is meant to be Ruby equivalent of Python's pip page.

Installation

The gem command is installed with the RubyGems package, which will be installed to support the Ruby programming language. It is not advised to install RubyGems to the system's world set. See the Ruby article for more information.

USE flags

Emerge

Usage

Invocation

RubyGems is a sophisticated package manager for Ruby. This is a
basic help message containing pointers to more information.
 Usage:
 gem -h/--help
 gem -v/--version
 gem command [arguments...] [options...]
 Examples:
 gem install rake
 gem list --local
 gem build package.gemspec
 gem help install
 Further help:
 gem help commands list all 'gem' commands
 gem help examples show some examples of usage
 gem help gem_dependencies gem dependencies file guide
 gem help platforms gem platforms guide
 gem help <COMMAND> show help on COMMAND
 (e.g. 'gem help install')
 gem server present a web page at
 http://localhost:8808/
 with info about installed gems
 Further information:
 http://guides.rubygems.org

Gem installation

To install a package using the gem command, where gems is the desired gems:

View gem's environment

The following command can be used to query gem installation paths and other useful information:

See the Application level package management article for best practices and information on adding gem binaries the user's PATH.

Removal

Update

List

See also

• Application level package management — provides best practice recommendations on managing the coexistence of operating system and application level package managers on Gentoo.
• pip — Python's package management system. It references packages available in the official Python Package Index (PyPI).
• Project:Ruby/Packaging RubyGems

• Application level package management
• Development